<script setup lang="ts">
	import { computed } from "vue";

	const props = defineProps({
		prefix: {
			type: String,
			default: "icon",
		},
		iconClass: {
			type: String,
			required: false,
			default: "",
		},
		color: {
			type: String,
			default: "#000",
		},
		size: {
			type: String,
			default: "1em",
		},
	});

	const symbolId = computed(() => `#${props.prefix}-${props.iconClass}`);
</script>

<template>
	<svg aria-hidden="true" class="svg-icon" :style="'width:' + size + ';height:' + size">
		<use :xlink:href="symbolId" :fill="color" />
	</svg>
</template>

<style scoped>
	.svg-icon {
		display: inline-block;
		width: 1em;
		height: 1em;
		overflow: hidden;
		vertical-align: -0.15em; /* 因icon大小被设置为和字体大小一致，而span等标签的下边缘会和字体的基线对齐，故需设置一个往下的偏移比例，来纠正视觉上的未对齐效果 */
		outline: none;
		fill: currentcolor; /* 定义元素的颜色，currentColor是一个变量，这个变量的值就表示当前元素的color值，如果当前元素未设置color值，则从父元素继承 */
	}
</style>
